format

问题 How i create the table mingyan . CREATE TABLE `mingyan` ( `tag` varchar(10) DEFAULT NULL, `cont` varchar(255) DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8; It's said that string format function with {} is more pythonic way than placeholder % . In my scrapy to write some fields into a table mingyan . self.cursor.execute("insert into mingyan(tag, cont) values (%s, %s)",(item['tag'],item['cont'])) It works fine in my scrapy,now i replace the placeholder way with string format function. self

问题 Sorry I was initially wanting to do it in php PHP integer part padding, but realised I will do it in Java in another part of code So I need to format numbers with the integer part at least 2 chars 2.11 -> 02.11 22.11 -> 22.11 222.11 -> 222.11 2.1111121 -> 02.1111121 double x=2.11; System.out.println(String.format("%08.5f", x)); could do it, but it's annoying the right trailing zeros, I would like to have an arbitrary large floating part String.format("%02d%s", (int) x, String.valueOf(x-(int)

问题 A simple question I hope. How can I compare the date entered into a DatePicker to the current Calendar date? To explain, If I have the DatePicker date stored as a string, how could I compare that to the current date on the android system calendar? protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.dpresult); textView1 = (TextView)findViewById(R.id.textView1); button1 = (Button)findViewById(R.id.button1); button1.setOnClickListener

问题 I'm trying to import .CSV files using BULK INSERT on SQL Server and a Format File. I have created the format file and set the correct field terminators for each value. The format file has been correctly validated and I have successfully imported some test data. However I have a problem when encountering comma's in the middle of quoted text, such as the following: "SB","7Y4386429Y0351805","B5503","","Chris",1,10,"Paypal","Hi sorry for the delay in payment, I will be sending payment soon."

问题 Does the iOS version string follow a documented format? I want to parse the sdk version strings and sort them in ascending order. Does the Apple documentation say anything about this? 回答1: From UIDevice @property(nonatomic,readonly,retain) NSString *systemVersion An example of the system version is @”1.2”. @propertyic,readonly,retain) NSString *systemName @propertyic,readonly,retain) NSString *model Possible examples of model strings are @”iPhone” and @ ”iPod touch” . Blog post to access the

问题 I'm running a project in subversion. I was having a problem commiting, one of the folders was giving a 'is missing or not locked' error, so following the advice I could find I deleted the folder locally, did a clean up and tried to update. This did not work. After some more tries I though it's easier to revert to a working version. However, when I tried that I got the following error: svn: Cannot read from '/homes/ndeklein/workspace/MS/.svn/format': /homes/ndeklein/workspace/MS/.svn/format

问题 How should I correctly format Date and Time Strings for the Android platform? Here is some code: String path = getFilesDir().getPath(); String filePath = path + "/somefile.xml"; File file = new File(filePath); Date lastModDate = new Date(file.lastModified()); String filelastModDate = "Updated: " + lastModDate.toString(); 回答1: You can format it various way... Date date = new Date(); SimpleDateFormat sdf = new SimpleDateFormat("h:mm a"); String currentTime = sdf.format(date); Here you can put

问题 Here is the existing data: I have 2 columns of data. Each row of the first column has data whereas only certain rows of the second column has data (others being blank). I want to convert the format of the data with the help of as.POSIXct(). For the first column I used the following code (I named the data frame as 'mrkt'): mrkt[1]<-lapply(mrkt[1],as.POSIXct) This worked well in terms of converting the existing data to the right format For the second column the above code won't work as the as

问题 I have a matrix of values like [150 255 25;400 80 10;240 68 190]. I want to store these values to text file in hexadecimal format such that each value in matrix is represented by 3digit hexa value (12bit). i.e Decimal Hexa notation 150 255 25 096 0FF 019 400 80 10 -> 190 050 00A 240 68 190 0F0 044 0BE I am using like this `fp=fopen('represen.dat','wb'); for i=1:1:x for j=1:1:y fprintf(fp,"%3x\t",A(i,j)); end fprintf(fp,"\n"); end` It is giving result as Decimal Hexa notation 150 255 25 96 FF

问题 I need to print all years greater than 1900 in a field. I have used to awk to get the field with the date. But I can not figure out how to use awk to pull only the years that are >=1900. So far I pulled this field by entering this: awk -F',' '{print $5}' presidents.csv this gives me these dates 4/03/1893 4/03/1897 14/9/1901 4/3/1909 4/03/1913 4/03/1921 2/8/1923 4/03/1929 4/03/1933 12/4/1945 20/01/1953 20/01/1961 22/11/1963 20/1/1969 9/8/1974 20/01/1977 20/01/1981 20/01/1989 20/01/1993 20/01